logging日志

 import logging

 logging.basicConfig(filename='log.log',
                     format='%(asctime)s - %(name)s - %(levelname)s - %(module)s; %(message)s',
                     datefmt='%Y-%m-%d %H:%M:%S %p',
                     level=logging.INFO,)
 '''
 CRITICAL = 50
 FATAL = CRITICAL
 ERROR = 40
 WARNING = 30
 WARN = WARNING
 INFO = 20
 DEBUG = 10
 NOTSET = 0
 '''
 logging.critical('c')
 logging.fatal('f')
 logging.error('e')
 logging.warning('w')
 logging.info('i')
 logging.debug('d')
 logging.log(logging.INFO,'')

结果：

2017-02-21 07:59:55 AM - root - CRITICAL - s1; c
2017-02-21 07:59:55 AM - root - CRITICAL - s1; f
2017-02-21 07:59:55 AM - root - ERROR - s1; e
2017-02-21 07:59:55 AM - root - WARNING - s1; w
2017-02-21 07:59:55 AM - root - INFO - s1; i
2017-02-21 07:59:55 AM - root - INFO - s1; 333

多文件写入日志

 import logging

 # 创建文件
 file_1_1 = logging.FileHandler('l1-1.log','a')
 # 创建格式
 fmt = logging.Formatter(fmt='%(asctime)s - %(name)s -%(levelname)s - %(module)s:%(message)s')
 #文件应用格式
 file_1_1.setFormatter(fmt)
 file_1_2 = logging.FileHandler('l1-2.log','a')
 fmt = logging.Formatter()
 file_1_2.setFormatter(fmt)

 # 定义日志
 #定义阈值
 logger1 = logging.Logger('s1',level=logging.ERROR)
 logger1.addHandler(file_1_1)
 logger1.addHandler(file_1_2)

 #写日志

 logger1.critical('')